In our project we are implementing an application that requires the SAP HANA database to be frozen. Which means, none of the operations should be allowed except for the read only operations.
Is there a way to freeze the entire database, and then unfreeze it in the later point of stage? Or is there any command to lock all the tables?
Nope, there is no such feature. You may look into different features like
In many situations binding the data change authorization to a set of roles and revoking the authorization from the role might work as well.